CN209634276U - Vehicle fuel oil evaporation pipe - Google Patents
Vehicle fuel oil evaporation pipe Download PDFInfo
- Publication number
- CN209634276U CN209634276U CN201822185551.6U CN201822185551U CN209634276U CN 209634276 U CN209634276 U CN 209634276U CN 201822185551 U CN201822185551 U CN 201822185551U CN 209634276 U CN209634276 U CN 209634276U
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- type joint
- insertion type
- nylon tube
- tube
- fast insertion
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a kind of vehicle fuel oil evaporation pipes, including evaporating tube body, the evaporation tube body includes the first nylon tube and the second nylon tube, the shut-off valve that first nylon tube and the second nylon tube have fast first fast insertion type joint by cold pressing mode with both ends is linked together, the other end of first nylon tube is provided with and communicated with the second fast insertion type joint for being connected to fuel tank, the other end of second nylon tube is connected with the rubber hose for connecting canister or atmosphere by third fast insertion type joint, pipe clamp is provided with in the rubber hose of third fast insertion type joint corresponding position, dust-proof blocking is respectively arranged on the other end of the rubber hose and second fast insertion type joint.The utility model advantage is that structure is simple, evaporates and is integrated with fast insertion type joint on tube body, and assembly is simple, easy to disassemble, while effectively controlling the volatilization of gasoline in fuel tank, balances fuel tank internal pressure, protects fuel tank.
Description
Technical field
The utility model relates to auto parts and components, more particularly, to a kind of vehicle fuel oil evaporation pipe.
Background technique
Since vehicle fuel steam (i.e. gasoline volatilization) is the automotive pollutant emission for seriously affecting environment, country the
Five, the 6th stage regulation clearly limits the discharge amount of oil gas (i.e. gasoline), and national 6th stage laws and regulations requirement utilizes carrying
The volatilization of oiling gas recovery system for oil (i.e. ORVR system) control oil vapour.Vapourizer tube is connection oil tank breather and canister
The key performance components of (or atmosphere) excessively volatilize for balancing the gas pressure inside fuel tank and limiting oil gas.It is existing
Vapourizer tube be sebific duct, poor universality, when installation, needs to assemble using clamp connection, and assembly difficulty is big, and there is oil and steam
Vapour risk of leakage.
Summary of the invention
The utility model aim is to provide that a kind of plasticity is high, is suitable for various complex pipelines arranges and reduce oil vapour
The vehicle fuel oil evaporation pipe of volatilization.
To achieve the above object, the utility model takes following technical proposals:
Vehicle fuel oil evaporation pipe described in the utility model, including evaporation tube body, the evaporation tube body include first
Nylon tube and the second nylon tube, first nylon tube and the second nylon tube have fast first fastly by cold pressing mode and both ends
The shut-off valve of plug type joint is linked together, and what the other end of the first nylon tube was provided with and communicated with for being connected to fuel tank second fast inserts
Formula connector, it is soft that the other end of the second nylon tube by third fast insertion type joint is connected with the rubber for connecting canister or atmosphere
Pipe, and is provided with pipe clamp, the other end of the rubber hose in the rubber hose of third fast insertion type joint corresponding position
Dust-proof blocking is respectively arranged with on second fast insertion type joint.
The utility model advantage is that structure is simple, evaporates and is integrated with fast insertion type joint on tube body, and assembly is simple, is convenient for
Disassembly, while effectively controlling the volatilization of gasoline in fuel tank；The plasticity for making full use of nylon tube, the pipe suitable for various complexity
Road arrangement, it is applied widely；Using rubber hose and plasticity and deformable diameter characteristic, can be realized evaporation tube body from it is different
The connection of canister connector；Shut-off valve can not only limit the volatilization of oil vapour, moreover it is possible to by negative-pressure balancing fuel tank internal pressure,
Protect fuel tank.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the left view structural representation of Fig. 1.
Fig. 3 is the structural schematic diagram of the utility model another embodiment.
Fig. 4 is the left view structural representation of Fig. 3.
Fig. 5 is pressure-leakage rating curve of evaporation tube body described in the utility model.
Specific embodiment
As shown in Figure 1, 2, vehicle fuel oil evaporation pipe described in the utility model, including evaporation tube body, the evaporation tube
Ontology includes the first nylon tube 1 and second the first, second nylon tube of nylon tube 2(2 by the non-conductive material system of black PA12/ETFE
At I.D=φ 6mm, t=1mm), first nylon tube 1 and the second nylon tube 2 are had fastly by cold pressing mode and both ends
First fast insertion type joint specification is SAE J2044 3/8inch, and the shut-off valve 3 that perpendicular type is inserted fastly is linked together, first Buddhist nun
The other end of imperial pipe 1 is provided with and communicated with the second fast insertion type joint 4 for being connected to fuel tank, second nylon tube 2 it is another
End is connected with specification I.D=φ of the rubber hose 6(rubber hose 6 for connecting canister or atmosphere by third fast insertion type joint
6mm, t=3mm；It is made of hyposmosis NBR.PVC+CSM), the rubber hose 6 with third fast insertion type joint corresponding position
On be provided with pipe clamp 7, be respectively arranged with dust-proof blocking on the other end of the rubber hose 6 and second fast insertion type joint 4,
First nylon tube 1 and the second nylon tube 2 have plasticity, and the pipeline suitable for various complexity is arranged, applied widely；Rubber is soft
Pipe 6 has plasticity and reducing, and rubber hose 6 can be structure as shown in Figure 1, 2, i.e. rubber hose when reality manufactures
6 are recessed to the right the U-shaped structure of opening to the left, structure as shown in Figure 3,4 can also be made according to actual needs certainly, i.e.,
The meander line structure extended to the right can be realized the quick connection from different connectors, meet the EVAP Evaporative System of various.
The first fast insertion type joint pressure with 1 connecting pin of the first nylon tube is P1, first with 2 connecting pin of the second nylon tube
Fast insertion type joint pressure is P2, and the venting pressure performance of shut-off valve 3 is as follows:
A) pressurization characteristic: when △ P=P1-P2=3.61kPa, air mass flow Q initial stage is in 100cm3/min or less；△P=
When P1-P2=5.61kPa, air mass flow Q is in 400cm3/min or more；When △ P=P1-P2=6.68kPa, air mass flow Q exists
5000cm3/min or more；B) negative pressure characteristic: when △ P=P1-P2=- 1.33kPa, air mass flow Q in 2000cm3/min or more,
Realize the balance of oil-air pressure in fuel tank.
As shown in figure 5, by pressure-leakage rating curve of evaporation tube body described in the utility model it is found that this is practical
Novel vapourizer tube can not only balance oil-air pressure in fuel tank, also achieve then fuel evaporation pipeline oil vapour
Volatilization.
Claims (1)
1. a kind of vehicle fuel oil evaporation pipe, including evaporation tube body, it is characterised in that: the evaporation tube body includes the first nylon
Pipe (1) and the second nylon tube (2), first nylon tube (1) and the second nylon tube (2) are had by cold pressing mode with both ends
The shut-off valve (3) of fast first fast insertion type joint is linked together, and the other end of the first nylon tube (1) is provided with and communicated with for being connected to combustion
The other end of the second fast insertion type joint (4) of fuel tank, the second nylon tube (2) is connected with by grafting connector (5) for connecting charcoal
Pipe clamp (7) are provided in the rubber hose (6) of tank or atmosphere, with the rubber hose (6) of institute grafting connector (5) corresponding position,
Dust-proof blocking is respectively arranged on the other end and second fast insertion type joint (4) of the rubber hose (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185551.6U CN209634276U (en) | 2018-12-25 | 2018-12-25 | Vehicle fuel oil evaporation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185551.6U CN209634276U (en) | 2018-12-25 | 2018-12-25 | Vehicle fuel oil evaporation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209634276U true CN209634276U (en) | 2019-11-15 |
Family
ID=68475892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822185551.6U Active CN209634276U (en) | 2018-12-25 | 2018-12-25 | Vehicle fuel oil evaporation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209634276U (en) |
-
2018
- 2018-12-25 CN CN201822185551.6U patent/CN209634276U/en active Active
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